Subduction Zone
Veteran Member
Yes, abiogenesis led to evolution. Evolution arises when there is reproduction with variation and competition.All right. Is abiogenesis proposed to have led to evolution? If not, what did? Maybe I didn't read what has been said scientifically about abiogenesis.
That is all that it takes.
First life was probably so simple that most of its reproduction was identical. Competition between identical cells is meaningless since it is the same as if the parent cell never died and there was only one of them. But, sometimes the cell would split and one of the halves would not be able to survive. Please note, there are never only one or even two cells for long once life starts. There will be rather quickly a whole population of cells. Sometimes when a cell would split one would be slightly inferior. Heck, it is a population so sometimes both would be inferior. Those would eventually die off. But sometimes when a cell split there would be a version that was better at reproducing in the particular environment. If it did not die off by accident early its sort would eventually replace the original. And we would see improvements occur again and again and again until the existing cells bore little resemblance to the original.
And sooner or later the environment would change or even more likely life would enter a different environment and with different "rules" there would be different changes that would be successful. After a while you would have multiple variations, all of which could be distinguished from each other.